ArticleActa parasitologica2026
Evaluating Toxoplasmosis Molecular Prevalence in Slaughtered Sheep using PCR Assay in Northern Palestine.
Article in Acta parasitologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis research aimed to conduct the first molecular survey of how prevalent T. gondii is in slaughtered sheep in Northern Palestine, focusing on how it is distributed among tissues to estimate the threat it poses to humans as a foodborne pathogen.
methodsA total of 1062 tissue samples from 346 sheep were obtained from abattoirs in Northern Palestine: 252 liver samples, 74 lung samples, 280 heart samples, 254 brain samples, and 202 tongue samples. The phenol-chloroform-isoamyl alcohol method was used to obtain DNA from the tissues. The REP-529 DNA fragment was identified using PCR.
resultsThe overall prevalence of T. gondii DNA in sheep was 25.7% (89/346), with ewes showing a significantly higher infection rate (52%) than rams (21.3%, p < 0.001). Regionally, Nablus had a higher infection rate (31.7%) than Jenin (19.3%, p = 0.008). Among 1,062 tissue samples, the highest infection rate was found in tongue tissue (21.8%), followed by lung (21.6%), heart (7.9%), liver (4.8%), and the lowest in brain (2.4%). Gender-specific analysis revealed that ewes had consistently higher tissue infection rates than rams, most notably in heart (30.4% vs. 3.4%, p < 0.001), brain (8.7% vs. 1%, p = 0.004), and tongue (36.4% vs. 17.7%, p = 0.008).
conclusionThe high level of T. gondii in sheep tissues, particularly in tongue tissues that are commonly consumed by humans in Northern Palestine, suggests a high level of threat to humans from sheep meat consumed in Northern Palestine.
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